<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>初识选择器</title>
	<style type="text/css">
		.world{
			font-size: 36px;
			color: red;
		}
	</style>
</head>
<body>
	<div id="hello" class="world">helloworld</div>
	<script type="text/javascript" src="../../lib/zepto.min.js"></script>
	<script type="text/javascript">
		$(document).ready(function(){
			/**
			 *  1、css选择器
			 *  
			 *  2、zepto.js选择器怎么写
			 */

			$(".world").html("12345"); 
		});
	</script>
</body>
</html>